fix(core): update

ts_web/elements/dees-progressbar.demo.ts

@@ -0,0 +1,11 @@
+import { html } from '@design.estate/dees-element';
+
+import { DeesProgressbar } from './dees-progressbar.js';
+
+export const demoFunc = () => {
+  return html`
+    <dees-progressbar
+      .percentage=${50}
+    ></dees-progressbar>
+  `;
+}